Hawaii earthquakes

M2.4 earthquake 17 km S of Fern Forest, Hawaii

A magnitude 2.4 earthquake struck 17 km S of Fern Forest, Hawaii on Mon, Oct 21, 1968, 9:53 AM GMT-10 (19:53 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M4.3 Hawaii region, Hawaii. This one was a foreshock.

Fern Forest forecastMore in Hawaii

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.4 (ml), micro
Local time
UTC
1968-10-21 19:53:43 UTC
Depth
7.0 km (4.4 mi), shallow
Epicenter
19.312° N, 155.147° W
Region
Hawaii
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 1.1 km horizontally, 1.6 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
191°, poorly surrounded by stations
Stations used
12

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 87 in the 60 days after this one and 112 in the 30 days before it.

After

  1. 4.3Hawaii region, Hawaii · 21152 days ago · 33 km deep · 52 km away
  2. 2.723 km SSE of Volcano, Hawaii · 21152 days ago · 8 km deep · 8 km away
  3. 2.216 km SSE of Volcano, Hawaii · 21151 days ago · 5 km deep · 3 km away
  4. 2.619 km WSW of Volcano, Hawaii · 21151 days ago · 3 km deep · 29 km away
  5. 2.617 km S of Fern Forest, Hawaii · 21151 days ago · 8 km deep · 2 km away
  6. 2.317 km SW of Leilani Estates, Hawaii · 21150 days ago · 2 km deep · 14 km away
  7. 2.431 km SSW of Pa‘auilo, Hawaii · 21150 days ago · 16 km deep · 63 km away
  8. 2.3Island of Hawaii, Hawaii · 21150 days ago · 14 km deep · 29 km away
  9. 2.415 km S of Volcano, Hawaii · 21149 days ago · 0 km deep · 8 km away
  10. 2.216 km S of Volcano, Hawaii · 21149 days ago · 0 km deep · 8 km away
  11. 2.619 km WSW of Volcano, Hawaii · 21149 days ago · 7 km deep · 30 km away
  12. 2.314 km S of Volcano, Hawaii · 21145 days ago · 10 km deep · 9 km away
  13. 2.317 km NNE of P?hala, Hawaii · 21145 days ago · 8 km deep · 29 km away
  14. 2.5Island of Hawaii, Hawaii · 21144 days ago · 11 km deep · 8 km away
  15. 2.719 km W of Volcano, Hawaii · 21144 days ago · 0 km deep · 31 km away
  16. 2.613 km SSE of Volcano, Hawaii · 21143 days ago · 2 km deep · 5 km away
  17. 2.69 km SSW of Volcano, Hawaii · 21143 days ago · 31 km deep · 14 km away
  18. 3.24 km SW of Kailua-Kona, Hawaii · 21141 days ago · 6 km deep · 98 km away
  19. 2.215 km S of Fern Forest, Hawaii · 21139 days ago · 7 km deep · 2 km away
  20. 3.324 km N of P?hala, Hawaii · 21136 days ago · 6 km deep · 36 km away
  21. 2.65 km WSW of Volcano, Hawaii · 21136 days ago · 19 km deep · 18 km away
  22. 2.64 km ESE of P?hala, Hawaii · 21136 days ago · 5 km deep · 34 km away
  23. 2.92 km E of P?hala, Hawaii · 21135 days ago · 0 km deep · 35 km away
  24. 2.015 km SSE of Fern Forest, Hawaii · 21135 days ago · 9 km deep · 8 km away
  25. 3.216 km SSE of Fern Forest, Hawaii · 21135 days ago · 8 km deep · 11 km away
  26. 3.516 km W of Volcano, Hawaii · 21134 days ago · 8 km deep · 28 km away
  27. 2.015 km SSE of Fern Forest, Hawaii · 21133 days ago · 8 km deep · 9 km away
  28. 2.819 km WSW of Volcano, Hawaii · 21131 days ago · 9 km deep · 27 km away
  29. 2.219 km WSW of Volcano, Hawaii · 21131 days ago · -1 km deep · 29 km away
  30. 2.123 km NNW of Volcano, Hawaii · 21129 days ago · 33 km deep · 41 km away
  31. 2.911 km N of Wai‘?hinu, Hawaii · 21129 days ago · 9 km deep · 49 km away
  32. 2.414 km SE of Fern Forest, Hawaii · 21128 days ago · 1 km deep · 12 km away
  33. 4.238 km S of Leilani Estates, Hawaii · 21128 days ago · 9 km deep · 30 km away
  34. 2.429 km S of Leilani Estates, Hawaii · 21128 days ago · 12 km deep · 23 km away
  35. 3.610 km SW of Volcano, Hawaii · 21127 days ago · 31 km deep · 16 km away
  36. 2.712 km SSW of Volcano, Hawaii · 21127 days ago · 30 km deep · 16 km away
  37. 2.928 km SSW of Leilani Estates, Hawaii · 21127 days ago · 8 km deep · 19 km away
  38. 3.013 km ESE of Naalehu, Hawaii · 21126 days ago · 38 km deep · 46 km away
  39. 2.7Island of Hawaii, Hawaii · 21126 days ago · 8 km deep · 74 km away
  40. 2.430 km SSW of Leilani Estates, Hawaii · 21126 days ago · 11 km deep · 20 km away
  41. 2.318 km WSW of Volcano, Hawaii · 21126 days ago · 8 km deep · 26 km away
  42. 2.927 km SSW of Leilani Estates, Hawaii · 21125 days ago · 12 km deep · 20 km away
  43. 2.824 km N of P?hala, Hawaii · 21124 days ago · 6 km deep · 38 km away
  44. 2.715 km SSE of Waimea, Hawaii · 21122 days ago · 5 km deep · 81 km away
  45. 2.936 km S of Leilani Estates, Hawaii · 21121 days ago · 7 km deep · 26 km away
  46. 2.310 km W of P?hala, Hawaii · 21121 days ago · 1 km deep · 47 km away
  47. 3.015 km NNE of P?hala, Hawaii · 21120 days ago · 7 km deep · 29 km away
  48. 2.416 km S of Fern Forest, Hawaii · 21120 days ago · 7 km deep · 1 km away
  49. 2.515 km SSE of Fern Forest, Hawaii · 21119 days ago · 8 km deep · 9 km away
  50. 2.518 km WSW of Volcano, Hawaii · 21119 days ago · 6 km deep · 26 km away
  51. 2.419 km WSW of Volcano, Hawaii · 21118 days ago · 5 km deep · 30 km away
  52. 2.413 km SSE of Volcano, Hawaii · 21118 days ago · 0 km deep · 6 km away
  53. 2.316 km S of Fern Forest, Hawaii · 21118 days ago · 7 km deep · 3 km away
  54. 2.516 km NNE of P?hala, Hawaii · 21118 days ago · 9 km deep · 31 km away
  55. 2.913 km SSW of Volcano, Hawaii · 21117 days ago · 29 km deep · 14 km away
  56. 2.617 km WSW of Volcano, Hawaii · 21117 days ago · 6 km deep · 25 km away
  57. 2.117 km NNE of P?hala, Hawaii · 21117 days ago · 7 km deep · 28 km away
  58. 2.316 km S of Volcano, Hawaii · 21116 days ago · 6 km deep · 8 km away
  59. 2.118 km S of Volcano, Hawaii · 21116 days ago · 8 km deep · 8 km away
  60. 3.06 km SSW of Volcano, Hawaii · 21116 days ago · 33 km deep · 15 km away

The first 60 of 87.

Before

  1. 2.811 km SSW of Volcano, Hawaii · 21159 days ago · 29 km deep · 14 km away
  2. 2.819 km S of Waikoloa, Hawaii · 21160 days ago · 10 km deep · 82 km away
  3. 2.914 km S of Fern Forest, Hawaii · 21160 days ago · 9 km deep · 4 km away
  4. 3.349 km SSE of Leilani Estates, Hawaii · 21160 days ago · 11 km deep · 50 km away
  5. 3.425 km S of Fern Forest, Hawaii · 21167 days ago · 9 km deep · 9 km away
  6. 2.712 km SSW of Volcano, Hawaii · 21168 days ago · 1 km deep · 16 km away
  7. 3.113 km SSW of Volcano, Hawaii · 21168 days ago · 0 km deep · 16 km away
  8. 3.023 km S of Fern Forest, Hawaii · 21168 days ago · 1 km deep · 7 km away
  9. 1.815 km SW of Leilani Estates, Hawaii · 21168 days ago · 5 km deep · 16 km away
  10. 1.810 km S of Fern Forest, Hawaii · 21169 days ago · 5 km deep · 6 km away
  11. 1.810 km S of Fern Forest, Hawaii · 21169 days ago · 2 km deep · 7 km away
  12. 2.310 km S of Fern Forest, Hawaii · 21169 days ago · 3 km deep · 7 km away
  13. 1.810 km S of Fern Forest, Hawaii · 21169 days ago · 3 km deep · 7 km away
  14. 1.810 km S of Fern Forest, Hawaii · 21169 days ago · 3 km deep · 7 km away
  15. 2.010 km S of Fern Forest, Hawaii · 21169 days ago · 2 km deep · 6 km away
  16. 1.811 km S of Fern Forest, Hawaii · 21169 days ago · 2 km deep · 5 km away
  17. 2.111 km S of Fern Forest, Hawaii · 21169 days ago · 3 km deep · 6 km away
  18. 2.410 km S of Fern Forest, Hawaii · 21169 days ago · 4 km deep · 6 km away
  19. 2.310 km S of Fern Forest, Hawaii · 21169 days ago · 2 km deep · 7 km away
  20. 2.310 km S of Fern Forest, Hawaii · 21169 days ago · 3 km deep · 7 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event hv19681421. Read Thu, Sep 24, 2026, 5:40 AM UTC.